Gb3077 1. Foreword The standard has revised GB/T 3077-1988 ”The Technical Conditions of Alloy Structure Steel”. There have been some changes in this national’s standard over its previous edition in the following technical aspects: - Change the name of the standard to “Alloy Structure Steel”; - After consultation between the two sides of supply and demand, the bar stock of which the ...

Translate this pageThis Standard is applicable to alloy structural steel bar stock with maximum diameter or thickness of 250mm. After negotiation between the two sides of supply and demand, bar stock with diameter greater than 250 mm can also be provided. ... The minimum width of removed material shall be five times of depth, and the maximum depth removed on a ...

2018-05-07 ,2018年05月07日 …

Translate this page2018年05月07日 ，2018-05-07>

25Cr2Ni4WA material stock:
25Cr2Ni4WA material stock also can be called as alloy structural steel. Alloy steel means this kind of grade contains some special alloy composition. Alloy steel plate application is very wide, as : Machine, pressure vessel, construction and so on .